interaction

Interaction
  • 文章类型: Journal Article
    阐明乳液中磷脂和乳蛋白之间的相互作用机制对于理解婴儿配方脂肪球的特性至关重要。在这项研究中,采用多光谱方法和分子对接技术探讨磷脂酰胆碱(PC)与乳清分离蛋白(WPI)的关系。观察表明,结合常数,除了热力学参数,随着温度的升高,暗示主要是静态淬火机制。主要是,范德华力和氢键构成了WPI和PC之间的核心相互作用。傅里叶变换红外光谱进一步证实了这一论断,用于验证PC对WPI二级结构的影响。对分子对接的热力学参数的详细评估表明,PC主要粘附于α-乳清蛋白内的特定位点,β-乳球蛋白,和牛血清白蛋白,由疏水相互作用的协同作用推动,氢键,和范德华部队,结合能分别为-5.59、-6.71和-7.85kcal/mol,分别。观察到PC浓度的增加放大了WPI的乳化性质,同时降低了ζ电位。本研究为PC-WPI相互作用机制在食品中的应用奠定了理论基础。
    The elucidation of the interaction mechanism between phospholipids and milk proteins within emulsions is pivotal for comprehending the properties of infant formula fat globules. In this study, multispectral methods and molecular docking were employed to explore the relationship between phosphatidylcholine (PC) and whey protein isolate (WPI). Observations indicate that the binding constant, alongside thermodynamic parameters, diminishes as temperature ascends, hinting at a predominantly static quenching mechanism. Predominantly, van der Waals forces and hydrogen bonds constitute the core interactions between WPI and PC. This assertion is further substantiated by Fourier transform infrared spectroscopy, which verifies PC\'s influence on WPI\'s secondary structure. A detailed assessment of thermodynamic parameters coupled with molecular docking reveals that PC predominantly adheres to specific sites within α-lactalbumin, β-lactoglobulin, and bovine serum albumin, propelled by a synergy of hydrophobic interactions, hydrogen bonding, and van der Waals forces, with binding energies noted at -5.59, -6.71, and -7.85 kcal/mol, respectively. An increment in PC concentration is observed to amplify the emulsification properties of WPI whilst concurrently diminishing the zeta potential. This study establishes a theoretical foundation for applying the PC-WPI interaction mechanism in food.
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  • 文章类型: Journal Article
    背景:高血压,睡眠障碍,抑郁症代表着显著的公共卫生问题,它们的相互联系的性质早已得到承认。这项研究的目的是探讨高血压背景下睡眠障碍与抑郁症之间的相互作用。
    方法:这项横断面研究在2005年至2018年的七个调查周期中,从NHANES数据库中纳入了42,143名18岁及以上的参与者。在排除了那些缺乏抑郁症数据的人之后,睡眠障碍,和高血压,以及不完整的主要变量,还有33383名与会者。我们使用加权逻辑回归来检验睡眠障碍之间的关系,抑郁症,和高血压。此外,我们使用乘法和加法两种方法评估睡眠障碍和抑郁对高血压的相互作用,以量化它们的联合作用.
    结果:与没有睡眠障碍的个体相比,睡眠障碍患者患高血压的风险增加(OR=1.51,95%CI:1.37-1.67).此外,抑郁症患者患高血压的风险明显高于睡眠障碍患者(OR=2.34,95%CI:1.95~2.80).我们的研究揭示了睡眠障碍和抑郁症与高血压风险之间的正相互作用(OR=1.07,95%CI:1.02-1.13)。此外,我们观察了影响高血压风险的定量加性交互作用指标(RERI=0.73,95%CI:0.56~0.92;API=0.31,95%CI:0.11~0.46;SI=2.19,95%CI:1.08~3.46)。此外,我们的研究还发现,睡眠时间少于7小时的人,睡眠潜伏期在5到30分钟之间,或超过30分钟的潜伏期经历高血压的风险显着增加。
    结论:我们的研究揭示了睡眠障碍之间的不同联系,抑郁症,和高血压患病率。此外,我们确定了高血压患病率中抑郁和睡眠障碍之间的相互作用.增强心理健康和解决睡眠障碍可以帮助预防和管理高血压。然而,需要更多的调查来建立因果关系和澄清机制。
    BACKGROUND: Hypertension, sleep disorders, and depression represent notable public health issues, and their interconnected nature has long been acknowledged. The objective of this study is to explore the interplay between sleep disorders and depression in the context of hypertension.
    METHODS: This cross-sectional study involved 42,143 participants aged 18 and above from the NHANES database across seven survey cycles between 2005 and 2018. After excluding those with missing data on depression, sleep disorders, and hypertension, as well as incomplete main variables, 33,383 participants remained. We used weighted logistic regression to examine the relationship between sleep disorders, depression, and hypertension. Additionally, we assessed the interaction between sleep disorders and depression on hypertension using both multiplicative and additive approaches to quantify their combined effect.
    RESULTS: Compared to individuals without sleep disorders, those with sleep disorders have an increased risk of hypertension (OR = 1.51, 95% CI: 1.37-1.67). Furthermore, individuals with depression experience a significantly higher risk of hypertension compared to those with sleep disorders alone (OR = 2.34, 95% CI: 1.95-2.80). Our study reveals a positive interaction between sleep disorders and depression in relation to hypertension risk (OR = 1.07, 95% CI: 1.02-1.13). In addition, we observed the quantitative additive interaction indicators (RERI = 0.73, 95% CI: 0.56 ~ 0.92; API = 0.31, 95% CI: 0.11 ~ 0.46; SI = 2.19, 95% CI: 1.08-3.46) influencing hypertension risk. Furthermore, our research also identified that individuals with less than 7 h of sleep, a sleep latency period between 5 and 30 min, or a latency period exceeding 30 min experience a significantly increased risk of hypertension.
    CONCLUSIONS: Our research uncovered separate links between sleep disorders, depression, and hypertension prevalence. Moreover, we identified an interaction between depression and sleep disorders in hypertension prevalence. Enhancing mental well-being and tackling sleep disorders could help prevent and manage hypertension. Yet, more investigation is required to establish causation and clarify mechanisms.
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  • 文章类型: English Abstract
    围产期精神病学现在在法国公共卫生法中被定义为父母-婴儿联合护理。它专注于父母与婴儿的互动,宝宝的发育和父母的心理健康。联合(父母-婴儿)护理的“移动团队”,第一个可以追溯到1990年代,由于2021年对围产期精神病学项目的呼吁以及2019年以来对儿童和青少年精神病学项目的呼吁,该项目得到了适度的发展。这些流动单位补充了专职门诊和住院联合护理单位。
    Perinatal psychiatry is now defined in the French Public Health Code as joint parent-baby care. It focuses on parent-baby interactions, the baby\'s development and the parents\' psychological health. \"Mobile teams\" for joint (parent-baby) care, the very first of which date back to the 1990s, have been developed modestly thanks to the call for perinatal psychiatry projects in 2021 and those for child and adolescent psychiatry since 2019. These mobile units complement full-time outpatient and inpatient joint care units.
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  • 文章类型: Journal Article
    在乳制品中,添加的透明质酸钠可以与蛋白质形成复合物,从而影响产品性能。在本研究中,在不同温度(25℃,65℃,90℃和121℃)研究了蛋白质/SH比和pH对复合物形成的影响。SH的添加降低了WPI/WPH的粒径,增加了系统中的电位值,随着处理温度的升高而变化较大。研究了配合物的结构性质。与SH的结合降低了游离氨基和游离巯基的含量,以及荧光强度和表面疏水性。FTIR结果和褐变强度测量证明了美拉德反应产物的形成。此外,SH的附着提高了WPI/WPH的热稳定性,降低了其抗原性。
    In dairy products, the added sodium hyaluronate may form complexes with proteins, thereby affecting product properties. In the present study, the interaction between whey protein isolate (WPI)/ whey protein hydrolysate (WPH) and sodium hyaluronate (SH) was characterized under thermal treatment at different temperatures (25 ℃, 65 ℃, 90 ℃ and 121 ℃) after studying effects of protein/SH ratio and pH on complex formation. The addition of SH reduced the particle size of WPI/WPH and increased potential value in the system, with greater variation with increasing treatment temperature. The structural properties of complexes were studied. The binding with SH decreased the contents of free amino group and free thiol group, as well as the fluorescence intensity and surface hydrophobicity. FTIR results and browning intensity measurement demonstrated the formation of Maillard reaction products. Moreover, the attachment of SH improved the thermal stability of WPI/WPH and decreased their antigenicity.
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  • 文章类型: Journal Article
    玫瑰多酚,玫瑰中的关键功能成分,需要足够的生物可及性来获得健康益处,受食品成分和加工的影响。研究各种热杀菌方法对牛奶玫瑰茶中玫瑰多酚生物可及性的影响及其潜在机制,我们的发现表明,在85°C/30分钟处理后,生物可及性显着增加。相反,121°C/15分钟处理降低了生物可及性。考察了不同杀菌条件下牛奶中β-酪蛋白与玫瑰多酚的相互作用,SEM和粒度分析显示结合,荧光光谱显示非共价键。结合力遵循121°C>85°C>25°C的顺序。值得注意的是,在85°C,非共价结合提高了多酚的生物可及性,而在121°C的强化结合降低了它。SDS-PAGE和氨基酸分析证实没有共价键。这项研究为选择牛奶-花组合的热灭菌温度建立了理论基础,考虑多酚的生物可及性。
    Rose polyphenols, key functional components in roses, require adequate bioaccessibility for their health benefits, subject to influence by food components and processing. Investigating the impact of various thermal sterilization methods on the bioaccessibility of rose polyphenols in rose tea with milk and the underlying mechanisms, our findings indicated a significant increase in bioaccessibility following treatment at 85 °C/30 min. Conversely, 121 °C/15 min treatment decreased bioaccessibility. Examining the interaction between β-casein in milk and rose polyphenols under different sterilization conditions, SEM and particle size analysis revealed binding, with fluorescence spectroscopy indicating non-covalent bonds. Binding forces followed the order 121 °C > 85 °C > 25 °C. Notably, at 85 °C, non-covalent binding improved polyphenol bioaccessibility, while the intensified binding at 121 °C decreased it. SDS-PAGE and amino acid analysis confirmed no covalent bond. This study establishes a theoretical basis for selecting thermal sterilization temperatures for milk-flower combinations, considering polyphenol bioaccessibility.
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    文章类型: English Abstract
    In recent years, complications of drug therapy are an important medical problem. Data on adverse drug reactions (ADR) in patients of older age groups were analyzed. The object of the study was notification cards for unwanted reactions received from medical organizations of the Irkutsk region for period 2009-2020 years. The Narangio scale was used to assess the causality between ADR and medicines. Of the 1021 ADR notifications in patients over 65 years of age, 2/3 (668) are presented with ADR notifications in women, 353 (34,6%) in men. The presence of background diseases was registered in 915 notifications (89,6%). There were no gender differences except for a higher incidence of chronic obstructive pulmonary disease in men (7,2 and 3,5% respectively, p<0,05) and diabetes mellitus in women (14 and 3,5% respectively, p<0,05). ADRs for antibacterial agents amounted to 31,8%, drugs for the treatment of cardiovascular diseases - 10,5%, cases of therapeutic inefficiency - 5,1%. The ADR data statement was in line with the recommended form of 76%. The most common filling defect was incomplete patient information. The validity of the Narango causation was high. The deadlines for reporting data were observed in 89,1%. For effective interaction in the pharmacovigilance system, it is necessary in each medical organization to constantly inform about the procedure for pharmacovigilance, types of ADRs, the rules for their detection and the timing of data reporting. The work should be supervised by a trained specialist.
    В последние годы осложнения лекарственной терапии являются важной медицинской проблемой. Проведен анализ данных о нежелательных реакциях лекарственных средств у пациентов старших возрастных групп. Объектом исследования были карты-извещения о нежелательных реакциях, поступившие из медицинских организаций Иркутской обл. за период 2009–2020 гг. Для оценки причинно-следственной связи между нежелательными реакциями и лекарственными средствами использовали шкалу Наранжо. Из 1 021 извещения о нежелательных реакциях у пациентов старше 65 лет было 668 (65,4%) — от женщин, 353 (34,6%) — от мужчин. Наличие фоновых заболеваний зарегистрировано в 915 (89,6%) извещениях. Не было гендерных различий, за исключением более высокой частоты ХОБЛ у мужчин — 7,2 и 3,5% у женщин соответственно (р<0,05), и сахарного диабета у женщин — 14 и 3,5% у мужчин соответственно (р<0,05). Нежелательные реакции на антибактериальные средства составили 31,8%, на препараты для лечения сердечно-сосудистых заболеваний — 10,5%, случаи терапевтической неэффективности — 5,1%. Изложение данных о нежелательных реакциях соответствовало рекомендуемой форме в 76%. Наиболее частым дефектом заполнения являлась неполная информация о пациенте. Степень достоверности причинно-следственной связи по шкале Наранжо выставляли как определенную, вероятную и возможную. Сроки репортирования данных соблюдали в 89,1%. Для эффективного взаимодействия в системе фармаконадзора необходимо в каждой медицинской организации постоянное информирование о порядке осуществления фармаконадзора, видах нежелательных реакций, правилах их выявления и сроках репортирования данных. Курировать работу должен подготовленный специалист.
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  • 文章类型: Journal Article
    十足虹彩病毒1(DIV1)是影响甲壳类动物的重要病原体,对水产养殖依赖国家的虾业构成严重威胁。在轮状病毒科,保守包膜蛋白DIV1-168L在病毒进入中起关键作用。尽管如此,与168L相互作用的宿主因子仍未鉴定。为了解决这个差距,我们建立了凡纳滨对虾g组织的cDNA文库,并进行了酵母双杂交筛选,以鉴定与168L相互作用的宿主因子。此外,我们进行了免疫共沉淀试验,以验证角质层蛋白8(CP8)与168L之间的相互作用.表达模式分析显示在g和表皮中存在CP8转录物。此外,免疫组化结果表明CP8在g细胞中的表达及其在g丝上皮中的定位。荧光分析表明,全长CP8与168L共定位在Sf9细胞的细胞质中。从CP8的N-末端去除信号肽消除了其在细胞质中的浓度。此外,在DIV1感染期间CP8表达被显著抑制。因此,我们的研究有助于更好地理解虹彩病毒的进入机制。DIV1序列的GenBank登录号是MF197913.1。
    Decapod iridescent virus 1 (DIV1) stands as a significant pathogen affecting crustaceans, posing a grave threat to the shrimp industries in aquaculture dependent nations. Within the Iridoviridae family, the conserved envelope protein DIV1-168L plays a pivotal role in virion entry. Nonetheless, the host factors that interact with 168L remain unidentified. To address this gap, we established a cDNA library derived from Litopenaeus vannamei gill tissue and conducted yeast two-hybrid screening to identify host factors that interact with 168L. Additionally, we performed co-immunoprecipitation assays to verify the interaction between cuticle protein 8 (CP8) and 168L. Expression pattern analysis revealed the presence of CP8 transcripts in the gill and epidermis. Furthermore, immunohistochemistry results demonstrated the expression of CP8 in gill cells and its localization in the gill filament epithelium. Fluorescence analysis indicated that full-length CP8 colocalized with 168L in the cytoplasm of Sf9 cells. Removal of the signal peptide from the N-terminal of CP8 eliminated its concentration in the cytoplasm. Additionally, CP8 expression was significantly inhibited during DIV1 infection. Therefore, our research contributes to a better understanding of the entry mechanism of iridovirids. The GenBank accession number for the DIV1 sequence is MF197913.1.
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  • 文章类型: Journal Article
    本研究旨在研究湿热处理(HMT)改性高原大麦(HB)对面团中面筋和淀粉颗粒之间相互作用的影响。结果表明,添加HB增加了吸水率,削弱了可扩展性,增加了储能模量(G')和损耗模量(G”),面团的tanδ(G“/G”)降低。组织结构和应力松弛结果表明,HB增加了面团的硬度和弹性模量(E2),需要更多的压力来压缩面团。此外,巯基和表面疏水性的增加都证实了HB的添加导致面筋网络结构的恶化。此外,HMT-HB提高了面粉的粉质质量数,与HB相比,面团的tanδ降低。E2、粘度系数(η)和硬度增加,而弛豫时间(τ)随着HBHMT强度的增加而减少,表明形成了更紧密的面团结构。二级结构和微观结构分析表明,HMT可以减少HB对面团品质的损害。这些结果表明,HMT具有增强淀粉和蛋白质之间相互作用的潜力,导致更致密的面团基质。本研究为HB在食品工业中的综合利用提供了基础理论。
    This study aimed to investigate the effect of heat-moisture treatment (HMT)-modified highland barley (HB) on interactions between gluten and starch granules in dough. The results demonstrated that HB addition increased the water absorption, weakened the extensibility, increased the storage modulus (G\') and loss modulus (G″), decreased tan δ (G\"/G\') of dough. The textural and stress relaxation results showed that HB increased the hardness and elastic modulus (E2) of the dough, requiring more stress to compress the dough. Also, the increase in sulfhydryl and surface hydrophobicity all confirmed the addition of HB induced the deterioration of gluten network structure. Furthermore, HMT-HB improved farinograph quality number of flour, decreased tan δ of dough compared with HB. The E2, coefficient of viscosity (η) and hardness increased, while the relaxation time (τ) decreased with increasing HMT strength of HB, suggesting the formation of a tighter dough structure. The secondary structure and microstructure analyses revealed that the HMT could reduce the damage of HB to dough quality. These results indicated that HMT had the potential to enhance the interaction between starch and protein, leading to a denser dough matrix. This study facilitates the basic theory for the comprehensive utilization of HB in the food industry.
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  • 文章类型: Journal Article
    工业革命以来,由于包括海洋酸化在内的直接影响和极端降雨事件等间接影响,大气CO2浓度的增加对沿海生态系统产生了重大负面影响。采用双因子交叉室内模拟实验,这项研究研究了酸化和低磷盐胁迫对红斑的联合影响。海水酸化增加了红木叶片的光合色素含量,促进了海草的生长速率。低磷胁迫减缓了海草的生长,并影响了海草叶片的渗透势和渗透调节物质含量。酸化和盐度降低对光合速率有显著的交互作用,光合色素含量,叶绿素荧光参数,和T.hemprichii的渗透势,但不是增长率。总的来说,这些发现表明,酸化可能会降低对红豆杉生理性能和生长的抑制作用。
    Since the Industrial Revolution, increasing atmospheric CO2 concentrations have had a substantial negative impact influence on coastal ecosystems because of direct effects including ocean acidification and indirect effects such as extreme rainfall events. Using a two-factor crossover indoor simulation experiment, this study examined the combined effects of acidification and hyposaline stress on Thalassia hemprichii. Seawater acidification increased the photosynthetic pigment content of T. hemprichii leaves and promoted seagrass growth rate. Hyposaline stress slowed down seagrass growth and had an impact on the osmotic potential and osmoregulatory substance content of seagrass leaves. Acidification and salinity reduction had significant interaction effects on the photosynthesis rate, photosynthetic pigment content, chlorophyll fluorescence parameters, and osmotic potential of T. hemprichii, but not on the growth rate. Overall, these findings have shown that the hyposaline stress inhibitory effect on the T. hemprichii physiological performance and growth may be reduced by acidification.
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  • 文章类型: Journal Article
    金属离子执行各种各样的功能,包括酸碱/氧化还原催化,结构功能,信令,和电子传输。了解过渡金属配合物与生物大分子的相互作用对生物学至关重要。药物化学,以及合成金属酶的生产。顺铂偶然发现后,金属络合物在生物化学中的重要性成为探究的重中之重。在这次审查中,对第一行过渡金属络合物的各种合成策略及其通过非共价结合与DNA的相互作用进行了十年的更新。此外,这项工作对理论和实践方法的有效性进行了出色的分析,以系统地生成用于抗癌治疗的新型非铂类金属药物。
    Metal ions carry out a wide variety of functions, including acid-base/redox catalysis, structural functions, signaling, and electron transport. Understanding the interactions of transition metal complexes with biomacromolecules is essential for biology, medicinal chemistry, and the production of synthetic metalloenzymes. After the coincidental discovery of cisplatin, importance of the metal complexes in biochemistry became a top priority for inquiry. In this review, a decade update on various synthetic strategies to first row transition metal complex and their interaction with DNA through non-covalent binding are explored. Moreover, this effort provides an excellent analysis on the efficacy of theoretical and practical approaches to the systematic generation of new non-platinum based metallodrugs for anti-cancer therapeutics.
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